/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/mix000.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:30:53,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:30:53,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:30:53,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:30:53,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:30:53,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:30:53,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:30:53,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:30:53,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:30:53,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:30:53,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:30:53,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:30:53,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:30:53,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:30:53,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:30:53,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:30:53,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:30:53,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:30:53,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:30:53,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:30:53,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:30:53,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:30:53,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:30:53,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:30:53,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:30:53,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:30:53,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:30:53,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:30:53,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:30:53,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:30:53,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:30:53,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:30:53,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:30:53,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:30:53,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:30:53,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:30:53,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:30:53,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:30:53,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:30:53,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:30:53,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:30:53,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:30:53,771 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:30:53,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:30:53,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:30:53,772 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:30:53,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:30:53,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:30:53,773 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:30:53,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:30:53,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:30:53,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:30:53,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:30:53,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:30:53,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:30:53,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:30:53,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:30:53,775 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:30:53,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:30:53,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:30:53,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:30:53,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:30:53,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:30:53,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:30:53,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:30:53,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:30:53,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:30:53,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:30:53,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:30:53,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:30:53,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:30:53,779 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:30:53,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:30:53,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:30:54,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:30:54,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:30:54,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:30:54,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:30:54,059 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:30:54,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix000.opt.i [2022-09-16 11:30:54,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/297d3db55/913d65e8d82c40c2b89d4eeb9d6d42ff/FLAG6def4b3bc [2022-09-16 11:30:54,597 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:30:54,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix000.opt.i [2022-09-16 11:30:54,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/297d3db55/913d65e8d82c40c2b89d4eeb9d6d42ff/FLAG6def4b3bc [2022-09-16 11:30:54,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/297d3db55/913d65e8d82c40c2b89d4eeb9d6d42ff [2022-09-16 11:30:54,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:30:54,968 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:30:54,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:30:54,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:30:54,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:30:54,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:30:54" (1/1) ... [2022-09-16 11:30:54,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d23872b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:54, skipping insertion in model container [2022-09-16 11:30:54,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:30:54" (1/1) ... [2022-09-16 11:30:54,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:30:55,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:30:55,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix000.opt.i[987,1000] [2022-09-16 11:30:55,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:30:55,498 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:30:55,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix000.opt.i[987,1000] [2022-09-16 11:30:55,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:30:55,588 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:30:55,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55 WrapperNode [2022-09-16 11:30:55,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:30:55,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:30:55,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:30:55,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:30:55,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,676 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 267 [2022-09-16 11:30:55,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:30:55,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:30:55,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:30:55,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:30:55,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:30:55,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:30:55,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:30:55,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:30:55,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (1/1) ... [2022-09-16 11:30:55,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:30:55,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:30:55,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:30:55,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:30:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:30:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:30:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:30:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:30:55,804 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:30:55,999 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:30:56,000 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:30:56,551 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:30:57,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:30:57,020 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:30:57,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:30:57 BoogieIcfgContainer [2022-09-16 11:30:57,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:30:57,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:30:57,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:30:57,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:30:57,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:30:54" (1/3) ... [2022-09-16 11:30:57,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3c412c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:30:57, skipping insertion in model container [2022-09-16 11:30:57,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:55" (2/3) ... [2022-09-16 11:30:57,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3c412c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:30:57, skipping insertion in model container [2022-09-16 11:30:57,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:30:57" (3/3) ... [2022-09-16 11:30:57,033 INFO L112 eAbstractionObserver]: Analyzing ICFG mix000.opt.i [2022-09-16 11:30:57,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:30:57,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:30:57,059 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:30:57,147 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:30:57,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 100 transitions, 210 flow [2022-09-16 11:30:57,242 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-09-16 11:30:57,243 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:30:57,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 2/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-09-16 11:30:57,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 100 transitions, 210 flow [2022-09-16 11:30:57,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 98 transitions, 202 flow [2022-09-16 11:30:57,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:30:57,277 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1bf53b73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:30:57,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-09-16 11:30:57,297 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-09-16 11:30:57,298 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:30:57,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:30:57,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:30:57,299 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:30:57,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:30:57,305 INFO L85 PathProgramCache]: Analyzing trace with hash 467126788, now seen corresponding path program 1 times [2022-09-16 11:30:57,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:30:57,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380428709] [2022-09-16 11:30:57,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:30:57,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:30:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:30:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:30:57,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:30:57,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380428709] [2022-09-16 11:30:57,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380428709] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:30:57,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:30:57,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:30:57,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393680525] [2022-09-16 11:30:57,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:30:57,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:30:57,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:30:57,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:30:57,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:30:57,662 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 100 [2022-09-16 11:30:57,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:57,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:30:57,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 100 [2022-09-16 11:30:57,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:30:57,868 INFO L130 PetriNetUnfolder]: 62/248 cut-off events. [2022-09-16 11:30:57,868 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-09-16 11:30:57,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 248 events. 62/248 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1068 event pairs, 24 based on Foata normal form. 28/254 useless extension candidates. Maximal degree in co-relation 333. Up to 73 conditions per place. [2022-09-16 11:30:57,874 INFO L137 encePairwiseOnDemand]: 91/100 looper letters, 19 selfloop transitions, 3 changer transitions 2/104 dead transitions. [2022-09-16 11:30:57,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 104 transitions, 265 flow [2022-09-16 11:30:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:30:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:30:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2022-09-16 11:30:57,893 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9266666666666666 [2022-09-16 11:30:57,893 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2022-09-16 11:30:57,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2022-09-16 11:30:57,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:30:57,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2022-09-16 11:30:57,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:57,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:57,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:57,914 INFO L175 Difference]: Start difference. First operand has 103 places, 98 transitions, 202 flow. Second operand 3 states and 278 transitions. [2022-09-16 11:30:57,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 104 transitions, 265 flow [2022-09-16 11:30:57,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 104 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:30:57,921 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 211 flow [2022-09-16 11:30:57,923 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=103, PETRI_TRANSITIONS=95} [2022-09-16 11:30:57,928 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 0 predicate places. [2022-09-16 11:30:57,928 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 211 flow [2022-09-16 11:30:57,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:57,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:30:57,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:30:57,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:30:57,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:30:57,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:30:57,930 INFO L85 PathProgramCache]: Analyzing trace with hash -286923436, now seen corresponding path program 1 times [2022-09-16 11:30:57,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:30:57,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107441131] [2022-09-16 11:30:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:30:57,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:30:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:30:58,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:30:58,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:30:58,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107441131] [2022-09-16 11:30:58,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107441131] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:30:58,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:30:58,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:30:58,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795440649] [2022-09-16 11:30:58,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:30:58,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:30:58,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:30:58,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:30:58,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:30:58,108 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 100 [2022-09-16 11:30:58,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:30:58,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 100 [2022-09-16 11:30:58,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:30:58,218 INFO L130 PetriNetUnfolder]: 53/224 cut-off events. [2022-09-16 11:30:58,220 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-09-16 11:30:58,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 224 events. 53/224 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 878 event pairs, 24 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 335. Up to 54 conditions per place. [2022-09-16 11:30:58,224 INFO L137 encePairwiseOnDemand]: 95/100 looper letters, 17 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2022-09-16 11:30:58,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 100 transitions, 259 flow [2022-09-16 11:30:58,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:30:58,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:30:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2022-09-16 11:30:58,232 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.875 [2022-09-16 11:30:58,232 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 350 transitions. [2022-09-16 11:30:58,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 350 transitions. [2022-09-16 11:30:58,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:30:58,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 350 transitions. [2022-09-16 11:30:58,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,236 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,237 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 211 flow. Second operand 4 states and 350 transitions. [2022-09-16 11:30:58,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 100 transitions, 259 flow [2022-09-16 11:30:58,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 100 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:30:58,241 INFO L231 Difference]: Finished difference. Result has 103 places, 93 transitions, 206 flow [2022-09-16 11:30:58,241 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=103, PETRI_TRANSITIONS=93} [2022-09-16 11:30:58,242 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 0 predicate places. [2022-09-16 11:30:58,242 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 93 transitions, 206 flow [2022-09-16 11:30:58,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:30:58,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:30:58,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:30:58,243 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:30:58,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:30:58,244 INFO L85 PathProgramCache]: Analyzing trace with hash -286923435, now seen corresponding path program 1 times [2022-09-16 11:30:58,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:30:58,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643235848] [2022-09-16 11:30:58,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:30:58,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:30:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:30:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:30:58,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:30:58,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643235848] [2022-09-16 11:30:58,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643235848] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:30:58,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:30:58,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:30:58,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603631375] [2022-09-16 11:30:58,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:30:58,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:30:58,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:30:58,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:30:58,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:30:58,363 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 100 [2022-09-16 11:30:58,363 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 93 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:30:58,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 100 [2022-09-16 11:30:58,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:30:58,452 INFO L130 PetriNetUnfolder]: 49/214 cut-off events. [2022-09-16 11:30:58,452 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-09-16 11:30:58,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 214 events. 49/214 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 776 event pairs, 24 based on Foata normal form. 6/210 useless extension candidates. Maximal degree in co-relation 309. Up to 51 conditions per place. [2022-09-16 11:30:58,454 INFO L137 encePairwiseOnDemand]: 95/100 looper letters, 0 selfloop transitions, 0 changer transitions 98/98 dead transitions. [2022-09-16 11:30:58,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 98 transitions, 250 flow [2022-09-16 11:30:58,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:30:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:30:58,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2022-09-16 11:30:58,457 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.87 [2022-09-16 11:30:58,457 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 348 transitions. [2022-09-16 11:30:58,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 348 transitions. [2022-09-16 11:30:58,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:30:58,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 348 transitions. [2022-09-16 11:30:58,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,460 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,462 INFO L175 Difference]: Start difference. First operand has 103 places, 93 transitions, 206 flow. Second operand 4 states and 348 transitions. [2022-09-16 11:30:58,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 98 transitions, 250 flow [2022-09-16 11:30:58,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 98 transitions, 243 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:30:58,465 INFO L231 Difference]: Finished difference. Result has 101 places, 0 transitions, 0 flow [2022-09-16 11:30:58,465 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=101, PETRI_TRANSITIONS=0} [2022-09-16 11:30:58,467 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, -2 predicate places. [2022-09-16 11:30:58,467 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 0 transitions, 0 flow [2022-09-16 11:30:58,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:58,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-09-16 11:30:58,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-09-16 11:30:58,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-09-16 11:30:58,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-09-16 11:30:58,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-09-16 11:30:58,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-09-16 11:30:58,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-09-16 11:30:58,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-09-16 11:30:58,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-09-16 11:30:58,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-09-16 11:30:58,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:30:58,473 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-16 11:30:58,480 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:30:58,480 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:30:58,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:30:58 BasicIcfg [2022-09-16 11:30:58,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:30:58,489 INFO L158 Benchmark]: Toolchain (without parser) took 3519.99ms. Allocated memory was 173.0MB in the beginning and 257.9MB in the end (delta: 84.9MB). Free memory was 138.9MB in the beginning and 147.8MB in the end (delta: -8.9MB). Peak memory consumption was 76.6MB. Max. memory is 8.0GB. [2022-09-16 11:30:58,492 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 173.0MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:30:58,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.52ms. Allocated memory is still 173.0MB. Free memory was 138.6MB in the beginning and 129.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-09-16 11:30:58,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.16ms. Allocated memory is still 173.0MB. Free memory was 129.2MB in the beginning and 126.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:30:58,493 INFO L158 Benchmark]: Boogie Preprocessor took 60.43ms. Allocated memory is still 173.0MB. Free memory was 126.3MB in the beginning and 123.9MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:30:58,494 INFO L158 Benchmark]: RCFGBuilder took 1285.91ms. Allocated memory was 173.0MB in the beginning and 257.9MB in the end (delta: 84.9MB). Free memory was 123.9MB in the beginning and 179.2MB in the end (delta: -55.3MB). Peak memory consumption was 90.2MB. Max. memory is 8.0GB. [2022-09-16 11:30:58,494 INFO L158 Benchmark]: TraceAbstraction took 1461.66ms. Allocated memory is still 257.9MB. Free memory was 178.7MB in the beginning and 147.8MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-09-16 11:30:58,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 173.0MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 619.52ms. Allocated memory is still 173.0MB. Free memory was 138.6MB in the beginning and 129.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 87.16ms. Allocated memory is still 173.0MB. Free memory was 129.2MB in the beginning and 126.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.43ms. Allocated memory is still 173.0MB. Free memory was 126.3MB in the beginning and 123.9MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1285.91ms. Allocated memory was 173.0MB in the beginning and 257.9MB in the end (delta: 84.9MB). Free memory was 123.9MB in the beginning and 179.2MB in the end (delta: -55.3MB). Peak memory consumption was 90.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1461.66ms. Allocated memory is still 257.9MB. Free memory was 178.7MB in the beginning and 147.8MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 122 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:30:58,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...